How do I revise efficiently? I have a biology test and I want to get a good grade so I am currently trying to learn how to revise. I have 0 experience in revising since I usually have good grades in tests and all but I don't feel confident with biology...​

Yea same, my school usually gives us sheets to revise from, but if you don't have those you can write as many questions as you need down, or questions on areas of your biology class that you struggle on and just look, cover, write check. I hope this helped!! :) if you have questions just ask.

Try to stay focused and make sure any distractions you have around are put away. This will help you focus!

Explanation:

Try chewing on a piece of gum while revising and chew the same flavor of gum when you take the exam this will help you remember everything you studied.

Also, don't forget to say "Rabbi Zidni ilma"

Read the explanation section.

Explanation:

We know, sand can't contain water because of it's nature. But mud can contain water. For preservation of an organisms, sometimes water is needed because many microbes needs water which helps to preserve the organisms. Along with this, mud has the nature of holding things for long time inside of it but sands doesn't have this.

As sand can't store water so that microbes don't do their work properly and that's why preservation get hampered.

But in mud, this problem isn't present.